Update.

Update.

2000-05-07  Mark Kettenis  <kettenis@gnu.org>

	* nss/nss_db/db-open.c: Cleanup and add comments.  Pretty print.
	Remove duplicate <errno.h> include.  Remove inclusion of
	<libintl.h> and "nsswitch.h".
	(set_cloexec_flag): New function, broken out of dbopen.
	(dbopen): Changed return type to `enum
	nss_status'.  Mostly rewritten to make sure that we do not report
	NSS_STATUS_SUCCESS if something went wrong.  Remove unnecessary casts.
	(internal_setent): Change return type to nss_status.
	Document, and make sure that the function
	behaves accordingly.  Make dynamically loading the database
	library really thread-safe and return NSS_STATUS_UNAVAIL if it
	failed.
	(db_cursor): Return ENOMEM is memory allocation failed.  Remove
	unecessary casts.
	* nss/nss_db/dummy-db.h: Add copyright notice.  Improve
	documentation.
	(struct dbc24, struct dbc27): Use DBT type in parameter lists for
	c_get function member.
	* nss/nss_db/nss_db.h: Add and tweak some comments.
	(DBT): Move typedef before NSS_DBC typedef.
	(NSS_DBC, NSS_DB): Use DBT in function member parameter lists.